Home / 9,117.55-13,676.33-2,878.19

Finding the Fourth Proportional to 9,117.55, 13,676.33 and 2,878.19

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Solution

The fourth proportional to 9,117.55, 13,676.33 and 2,878.19 is: 4,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.55 : 13,676.33 = 2,878.19 : x
  2. Step 2: Convert to fraction form
    9,117.55/13,676.33 = 2,878.19/x
  3. Step 3: Cross multiply
    9,117.55x = 13,676.33 × 2,878.19
  4. Step 4: Simplify right side
    9,117.55x = 39,363,061.85
  5. Step 5: Solve for x
    x = 39,363,061.85/9,117.55
  6. Step 6: Final answer
    x = 4,317.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.